MARINE RADAR
MODEL 1715
Your Local Agent/DealerYour Local Agent/Dealer
9-52 Ashihara-cho,9-52 Ashihara-cho,
Nishinomi
y
a, Ja
p
anNishinomi
y
a, Ja
p
an
Tele
p
hone :Tele
p
hone : 0798-65-21110798-65-2111
Telefax :Telefax : 0798-65-42000798-65-4200
F
IRST EDITION :
F
IRST EDITION : . . 00000000
Printed in JapanPrinted in Japan
A
ll ri
g
hts reserved.
A
ll ri
g
hts reserved.
PUB.No.PUB.No. OME-35140OME-35140
*00014791100**00014791100*
*00014791100**00014791100*
(( ))
MODEL1715MODEL1715
* 0 0 0 1 4 7 9 1 1 0 0 ** 0 0 0 1 4 7 9 1 1 0 0 *
*OME35140Z00**OME35140Z00*
*OME35140Z00**OME35140Z00*
* O M E 3 5 1 4 0 Z 0 0 ** O M E 3 5 1 4 0 Z 0 0 *
i
TABLE OF CONTENTS
SAFETY INSTRUCTIONS............................ ii
FOREWORD............................................... iii
SYSTEM CONFIGURATION....................... iv
EQUIPMENT LISTS..................................... v
1.
OPERATION ........................................... 1
1.1
Controls .................................................. 1
1.2
Indications .............................................. 2
1.3
Turning Power On/Off ............................ 3
1.4
Transmitting, Standby............................. 3
1.5
Adjusting Display Contrast, Brilliance .... 4
1.6
Choosing the Range .............................. 4
1.7
Receiver Sensitivity................................ 4
1.8
Suppressing Sea Clutter ........................ 5
1.9
Suppressing Rain Clutter ....................... 6
1.10
Measuring the Range............................. 6
1.11
Measuring the Bearing ........................... 7
1.12
Shifting the Display ................................ 7
1.13
Zoom ...................................................... 8
1.14
User Menu Overview.............................. 8
1.15
Heading Line .......................................... 9
1.16
Interference Rejector.............................. 9
1.17
Noise Rejector...................................... 10
1.18
Echo Trail, Trail Brilliance..................... 10
1.19
Echo Stretch......................................... 10
1.20
Guard Alarm ..........................................11
1.21
Watchman ............................................ 12
1.22
Suppressing Long-range Rain Clutter.. 12
1.23
Panel Backlighting................................ 12
1.24
Hue....................................................... 13
1.25
Resetting Distance Run ....................... 13
1.26
PROG Key............................................ 13
1.27
Outputting Target Position to a Plotter . 13
1.28
Turning Navigation Data On/Off ........... 14
1.29
Setting up Nav Data Displays .............. 14
1.30
System Menu ....................................... 16
2.
MAINTENANCE, TROUBLESHOOTING
..... 18
2.1
Maintenance .........................................18
2.2
Replacing the Fuse...............................19
2.3
Troubleshooting ....................................19
2.4
Diagnostics ........................................... 20
2.5
Test Pattern........................................... 21
2.6
Clearing the Memory ............................ 21
2.7
Replacing the Magnetron .....................21
2.8
Replacing the Synchro Belt ..................21
3.
INSTALLATION..................................... 22
3.1
Antenna Unit Installation.......................22
3.2
Display Unit Installation ........................25
3.3
Wiring.................................................... 25
3.4
Adjustments ..........................................26
3.5
Magnetron Heater Voltage.................... 29
MENU TREE.............................................. 30
SPECIFICATIONS ..................................SP-1
PACKING LIST
OUTLINE DRAWINGS
INTERCONNECTION DIAGRAM
SCHEMATIC DIAGRAMS
ii
SAFETY INSTRUCTIONS
Safety Instructions for the Operator
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel
should work inside the
equipment.
Wear a safety belt and hard
hat when working on the
antenna unit.
Serious injury or death can
result if someone falls from
the radar antenna mast.
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury can
result.
Turn off the power immediately if water
leaks into the equipment or the equip-
ment is emitting smoke or fire.
Continued use of the equipment can cause
fire or electrical shock.
Use the proper fuse.
Use of a wrong fuse can damage the
equipment and void the warranty.
WARNING LABEL
A warning label is attached to the
equipment. Do not remove the label.
If the label is missing or damaged,
contact a FURUNO agent or dealer
about replacement.
WARNING
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
Name: Warning Label (1)
Type: 86-003-1011-1
Code No.: 100-236-231
CAUTION
Safety Instructions for the Installer
Observe the following compass safe
distances to prevent interference to a
magnetic compass:
Standard Steering
compass compass
0.60 m 0.40 m
Antenna
unit
1.25 m 0.85 m
Display
unit
ELECTRICAL SHOCK HAZARD
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
Only qualified personnel
should work inside the
equipment.
Wear a safety belt and hard
hat when working on the
antenna unit.
Serious injury or death can
result if someone falls from
the radar antenna mast.
WARNING
Construct a suitable service platform
from which to install the antenna unit.
Serious injury or death can result if some-
one falls from the radar antenna mast.
Be sure that the power supply is
compatible with the voltage rating of
the equipment.
Connection of an incorrect power supply
can cause fire or damage the equipment.
Use only the specified power cable.
Fire or damage to the equipment can
result if a different cable is used.
CAUTION
iii
FOREWORD
A Word to the Owner of the
MODEL 1715
Congratulations on your choice of the
FURUNO MODEL 1715 Marine Radar.
For over 50 years FURUNO Electric
Company has enjoyed an enviable reputation
for innovative and dependable marine
electronics equipment. This dedication to
excellence is furthered by our extensive
global network of agents and dealers.
Your radar is designed and constructed to
meet the rigorous demands of the marine
environment. However, no machine can
perform its intended function unless installed,
operated and maintained properly. Please
carefully read and follow the recommended
procedures for installation, operation, and
maintenance.
We would appreciate hearing from you, the
end-user, about whether we are achieving our
purposes.
Thank you for considering and purchasing
FURUNO equipment.
Features
Your radar has a large variety of functions, all
contained in a rugged plastic case. All
controls respond immediately to the
operator’s command and each time a key is
pressed the corresponding change can be
seen on the screen.
The main features of the MODEL 1715 are
•
Daylight viewing radar specially designed
for small craft and sailing yachts.
•
Traditional FURUNO reliability and quality
in a compact, light-weight and low-cost
radar.
•
Compact and light-weight radome antenna
with precision 45 cm center-fed radiator.
•
High definition 7-inch monochrome LCD
display.
•
Automatic control of sensitivity (gain),
tuning and A/C SEA for simplified
operation.
•
Targets can be displayed in grey tones on
a white background or vice versa, for
optimal viewing under any lighting
conditions.
•
On-screen alphanumeric readout of all
operational information.
•
User programmable nav data displays.
•
[PROG] key acts as a menu shortcut key.
•
[TLL] key outputs chosen target’s L/L
position to a plotter.
•
Standard features include Display Shift,
EBL, Echo Stretch, Echo Trail, Guard
Alarm, Interference Rejector, VRM, Zoom.
•
Guard zone watches for targets entering
(or exiting) a guard zone.
•
Operates on 12 or 24 V DC power.
iv
SYSTEM CONFIGURATION
DISPLAY UNIT
RDP-142
EXTERNAL
BUZZER
XH3-BZ-L970
SHIP'S MAINS
12-24 VDC
RECTIFIER
PR-62
: Standard supply
: Optional supply
: Local supply
SHIP'S MAINS
115/230 VAC,
1
φ
, 50/60 Hz
NAVIGATOR
or ECHO SOUNDER
(NMEA 0183)
ESC
MENU
MODE
VRMEBL
POWER
BRILL
GAIN
ALARM
RANGE
GPS RECEIVER
GP-310B/320B
WIND INDICATOR,
SPEED INDICATOR
ANTENNA UNIT
RSB-0095
TLL
PROG
v
EQUIPMENT LISTS
Standard supply
Name Type Code No. Qty Remarks
Antenna Unit RSB-0095 — 1
Display Unit RDP-142 — 1
CP03-25301 008-442-280 1 set For antenna unit, including EMI core
CP03-24910 000-080-231 Antenna cable (10 m)
CP03-24920 000-080-232 Antenna cable (15 m)
CP03-24930 000-080-233
1 set
Antenna cable (20 m)
Installation
Materials*
CP03-25101 008-441-250 1 set For display unit, including tapping
screws for mounting hanger
Spare Parts* SP03-09800 000-085-441 1 set Fuse
*: See packing list at end of manual.
Option
Name Type Code No. Qty Remarks
Buzzer Assy. XH3-BZ-L970 000-146-422
1
With connector, 0.9 m
Cable Assy. MJ-A7SPF0007-050 000-144-418 1
Connector at one end, 5
m, for NMEA equipment
Cable Assy. MJ-A15A7F0004-005 000-145-690 1
For NMEA equipment, 0.5
m, connector at both ends,
7P-7P/6P
Cable Assy. A15A7F0005-020 000-145-691 1
7P-7P, for NMEA
equipment, 2 m
Cable Assy. MJ-A10SPF0003-300 000-130-034 1
Antenna cable, 30 m, for
24 VDC power
Radome Mounting
Bracket
OP03-93 008-445-080 1
For mounting antenna unit
on a sailboat
PR-62 000-013-484
100 VAC
PR-62 000-013-485
115 VAC
PR-62 000-013-486
220 VAC
Rectifier
PR-62 000-013-487
1
230 VAC
1
1. OPERATION
1.1 Controls
Cursor Pad
Chooses menu items;
adjusts VRM, EBL and cursor.
Opens/closes menu;
escapes from current operation.
Chooses display mode.
Opens dialog box for adjustment
of gain, A/C SEA, A/C RAIN.
Chooses radar range.
Enables/disables guard alarm.
Turns EBL on/off.
Short press: Turns power on.
Long press: Turns power off.
Momentary press: Opens dialog box for
(power turned on) adjustment of display
contrast, brilliance
and mode (TX, ST-BY)
selection.
ESC
MENU
MODE
VRMEBL
POWER
BRILL
GAIN
ALARM
RANGE
TLL
PROG
Turns VRM on/off.
Shortcut key
Outputs chosen target’s L/L
position to plotter.
How to remove the hard cover
Place your thumbs at the center
of the cover, and then lift the cover while
pressing it with your thumbs.
Display unit
1. OPERATION
2
1.2 Indications
TRAIL
G(IN)
ES H
IR H
FTC
0.5
1.5nm
ZOOM
Range
Range ring
interval
Zoom
Echo trails
Guard alarm (IN or OUT)
Echo stretch
Rain clutter suppressor
Guard
zone
Cursor
EBL
Range rings
Range, bearing and
time-to-go to cursor
location
(Cursor latitude and
longitude position
also available if radar
is interfaced with
a navigator.)
EBL bearing
VRM range
VRM
Watchman
Heading line
WATCH
SIM
Simulation mode
Interference rejector
Appropriate sensors required to display nav data.
EBL/VRM Box
EBL
VRM
45.0°
1.25
RNG 06.2nm
BRG 283.2°
TTG: 02H21M
Rng
XTE
Brg
Cse
8.56 nm
0.39 nm
306°
155°
Trip meter
Position
34°22.539 N
136°07.516 E
Range,
XTE (Cross-track error)
Position
Bearing,
Course
Indications
About the LCD
The high quality LCD displays better than 99.99% of its picture elements. The remaining 0.01%
may drop out or light, however this is not an indication of malfunction; it is a characteristic of the
LCD.
1. OPERATION
3
1.3 Turning Power On/Off
Press the [POWER/BRILL] key to turn on the
power. The unit beeps, the startup screen
appears, and then the equipment checks the
ROM and RAM for proper operation and
displays program number. The ROM and
RAM check shows OK or NG (No Good). If
NG appears, try to press any key except the
[POWER/BRILL] key to start operation.
However, the equipment may not work
properly. Contact your dealer for advice.
XX.XX = Program version no.
ROM : OK RAM : OK
Program No: 0359199-XX.XX
FURUNO ELECTRIC CO., LTD.
7" LCD MARINE RADAR
Startup screen
After the completion of the startup test, a
timer displays the time remaining for warm up
of the magnetron (the device which transmits
radar pulses), counting down from 1:00 to
0:00.
To turn off the power, press and hold down
the [POWER/BRILL] key (about three
seconds) until the screen goes blank.
Provided that the radar was once in use with
the transmitter tube (magnetron) still warm,
you can turn the radar into TRANSMIT
condition without 1-minute of warm-up. If the
[POWER/BRILL] switch was accidentally
turned off and you want to restart the radar
promptly, turn on the [POWER/BRILL] switch
not later than 15 seconds after power-off.
Note 1: In a cold environment the screen
appears “foggy” when the power is turned on
but is soon restored to normal condition.
Note 2: The example screens shown in this
manual may not match the screens you see
on your display. The screen you see depends
on your system configuration and equipment
settings.
1.4 Transmitting, Standby
After the power is turned on and the
magnetron has warmed up, “ST-BY”
(Stand-by) appears, indicating the radar is
ready to transmit radar pulses.
To toggle between transmit and stand-by, do
the following:
1. With the power turned on, press the
[POWER/BRILL] key momentarily to show
the brilliance/contrast adjustment window.
CONT: 4
LOW HIGH
BRILL:
LOW HIGH
9
BRILL/CONTRAST
[MODE]: TX/ST-BY
[MENU/ESC] : Exit.
Brilliance/contrast adjustment window
2. Press the [MODE] key to go to stand-by
and transmit status alternately.
Note: If you attempt to transmit before
“ST-BY” appears, the beeps sound and
the radar does not transmit pulses. Wait
until “ST-BY” appears.
3. Press the [MENU/ESC] key to close the
window.
When radar pulses are transmitted the radar
receiver is automatically tuned. Echoes
appear in four levels of digitized video
according to echo strength. When a target is
beneath a marker (VRM, EBL, heading line,
range ring) the part of the marker where the
target lies is displayed in reverse video.
1. OPERATION
4
1.5 Adjusting Display
Contrast, Brilliance
1. With the power turned on, press the
[POWER/BRILL] key momentarily to show
the brilliance/contrast adjustment window.
CONT: 4
LOW HIGH
BRILL:
LOW HIGH
9
BRILL/CONTRAST
[MODE]: TX/ST-BY
[MENU/ESC] : Exit.
Brilliance/contrast adjustment window
2. Press ◄ or ► to adjust contrast.
3. Press ▲ or ▼ to adjust brilliance.
4. Press the [MENU/ESC] key to escape.
Note 1: Windows other than menu windows
are erased when there is no operation within
about 10 seconds.
Note 2: The radar starts up with the last-used
brilliance level after the startup screen
appears. Therefore, adjust the brilliance if it is
too low at startup.
1.6 Choosing the Range
The range selected automatically determines
the range ring interval, the number of range
rings and pulse repetition rate.
Press the [RANGE+] or [RANGE-] key to
choose the range. The range and range ring
interval appear at the top left corner on the
screen.
Range
Range ring
interval
6.0
nm
2.0
RNG 03.2nm
BRG 60.2°
TTG 02H21M
EBL - - - .-°
VRM - - - -nm
Location of range and range ring
interval indications
1.7 Receiver Sensitivity
The [GAIN] key adjusts the sensitivity (gain)
of the receiver. It works in precisely the same
manner as the volume control of a broadcast
receiver, amplifying the signals received.
To set the sensitivity, you first choose the
automatic sensitivity setting which best
matches current sea condition. Then, if
necessary, you may fine tune the sensitivity
manually. The proper setting is such that the
background noise is just visible on the
screen.
If you set up for too little sensitivity, weak
echoes may be missed. On the other hand
excessive sensitivity yields too much
background noise; weak targets may be
missed because of the poor contrast between
desired echoes and the background noise on
the display.
1. Press the [GAIN] key consecutively until
the display shown below appears.
GAIN
20
[GAIN] : A/C SEA MENU
[MENU/ESC] : Exit.
AUTO : MODERATE
MANU
Gain adjustment window
1. OPERATION
5
2. Press ▲ or ▼ to choose AUTO or MANU
as appropriate.
Automatic gain adjustment
1) Press ► to open the automatic gain
options window.
ROUGH
MODERATE
CALM
Automatic gain options
2) Press ▲ or ▼ to choose ROUGH,
MODERATE or CALM depending on
sea conditions.
3) Press ◄ to close the window.
Manual gain adjustment
While observing the screen and the gain
tuning bar, press ◄ or ► to adjust the
gain. The setting range is 0-100.
3. Press the [MENU/ESC] key to finish.
1.8 Suppressing Sea Clutter
In rough weather, returns from the sea
surface, called sea clutter, are received over
several miles around own ship and mask
nearby targets. This situation can be
improved by properly suppressing the sea
clutter with the A/C SEA control.
To set the A/C SEA, you first choose the
automatic A/C SEA setting which best
matches current sea conditions. Then, if
necessary, you may fine tune the A/C SEA
manually.
In most cases suppress the clutter until it has
disappeared to leeward, but a little is still
visible windward. If the setting is too low,
targets will be hidden in the clutter, while if it
is set too high, both sea clutter and targets
will disappear from the display.
A common mistake is too over-suppress sea
clutter so that it is completely removed. You
can see how dangerous this can be by setting
up for maximum A/C SEA: A dark zone will be
created near the center of the screen,
causing a loss of close-in targets. This dark
zone is even more dangerous if the sensitivity
has not been properly adjusted.
Always leave a little sea clutter visible on the
screen, first adjusting automatically and then
fine tuning with the manual control as
necessary.
Sea clutter at screen center
1. Press the [GAIN] key consecutively until
the display shown below appears.
A/C SEA
20
[GAIN] : A/C RAIN MENU
[MENU/ESC] : Exit.
AUTO : MODERATE
MANU
A/C SEA adjustment window
2. Press ▲ or ▼ to choose AUTO or MANU
as appropriate.
Automatic A/C SEA adjustment
1) Press ► to open the automatic A/C
SEA options window.
ROUGH
MODERATE
CALM
A/C SEA options
2) Press ▲ or ▼ to choose ROUGH,
MODERATE or CALM depending on
sea conditions.
3) Press ◄ to close the window.
1. OPERATION
6
Manual A/C SEA adjustment
While observing the screen and the A/C
SEA tuning bar, press ◄ or ► to adjust
the A/C SEA. The setting range is 0-100.
4. Press the [MENU/ESC] key to finish.
1.9 Suppressing Rain Clutter
The vertical beamwidth of the antenna is
designed to see surface targets even when
the ship is rolling. However, by this design the
antenna will also pick up rain clutter (rain,
snow, or hail) in the same manner as normal
targets. The illustration below shows the
appearance of rain clutter on the display.
The A/C RAIN control adjusts the receiver
sensitivity as the A/C SEA control does but
rather in a longer time period (longer range).
The higher the setting the greater the
anti-clutter effect.
Rain clutter at screen center
1. Press the [GAIN] key consecutively until
the display shown below appears.
A/C RAIN
[GAIN] : GAIN MENU
[MENU/ESC] : Exit.
65
A/C RAIN adjustment window
2. While observing the screen and the A/C
RAIN tuning bar, press ◄ or ► to adjust
the A/C RAIN. The setting range is 0-100.
3. Press the [MENU/ESC] key to finish.
1.10 Measuring the Range
The bearing to a target can be measured by
the range rings, by the cursor and by the
VRM (Variable Range Marker).
Measuring range by the cursor
Operate the cursor pad to place the cursor on
the inside edge of the target. Read the range
to the cursor at the bottom right corner of the
display.
Measuring range by the range rings
Count the number of rings between the
center of the display and the target. Check
the range ring interval and judge the distance
of the echo from the inner edge of the nearest
ring.
Measuring range by the VRM
1. Press the [VRM] key to display the VRM.
The message “Adjust VRM by cursor”
appears and “VRM” in the EBL/VRM box
is displayed in reverse video. The
message is automatically erased after 10
seconds, or you may erase it sooner by
pressing any key.
2. Operate the cursor pad to place the VRM
on the inside edge of the target.
3. Check the VRM readout at the bottom left
corner on the screen to find the range to
the target.
To anchor the VRM, press the [MENU/ESC]
key. (It is automatically anchored if there is no
key operation for about 10 seconds.) To
erase the VRM, press the [VRM] key.
6.0
nm
2.0
Target
VRM
VRM
range
Range, bearing
and time-to-go
to cursor
location
RNG 2.22nm
BRG 45.62°
TTG 02H21M
Cursor
EBL
- - -
.-
°
VRM
2.91
nm
How to measure the range
1. OPERATION
7
1.11 Measuring the Bearing
The bearing to a target can be measured with
the cursor and the EBL (Electronic Bearing
Line).
Measuring bearing with the cursor
Operate the cursor pad to place the cursor on
the inside edge of the target. Read the
bearing to the target at the bottom right
corner.
Measuring bearing with the EBL
1. Press the [EBL] key to show the EBL. The
message “Adjust EBL by cursor” appears
and “EBL” in the EBL/VRM box is
displayed in reverse video. The message
is automatically erased after 10 seconds,
or you may erase it sooner by pressing
any key.
2. Operate the cursor pad to bisect the
target with the EBL.
3. Check the EBL readout at the bottom left
corner on the screen to find the bearing to
the target.
To anchor the EBL, press the [MENU/ESC]
key. (It is automatically anchored if there is no
key operation for about 10 seconds.) To
erase the EBL, press the [EBL] key.
6.0
nm
2.0
EBL
bearing
RNG 2.22nm
BRG 45.62°
TTG 02H21M
Range, bearing
and time-to-go
to cursor
location
Target
EBL
Cursor
EBL 45.62
°
VRM
- - - -
nm
Measuring range by the EBL and cursor
1.12 Shifting the Display
Own ship position, or sweep origin, can be
displaced manually or automatically to
expand the view field without switching to a
longer range. The default shift method is
manual.
If shift is activated when nav data is displayed,
the nav data is automatically erased.
1. Use the cursor pad to place the cursor
where you want to shift own ship position.
2. Press the [MODE] key to show the
Display Mode menu.
DISPLAY MODE
[MENU/ESC] : Exit
SHIFT (MANUAL)*
NORMAL
ZOOM
NAV DISP OFF ON
* UTO i d f M NU L
Display mode menu
*: If SHIFT (AUTO) is shown, open the
System menu and set SHIFT MODE to
MANUAL. For further details, see SHIFT
MODE on page 17.
3. Press ▲ to choose SHIFT (MANUAL).
4. Press the [MENU/ESC] key to close the
menu.
Select where to shift Shifted display
with the cursor.
Choose
manual
SHIFT
mode.
How the manual shift works
To cancel the shifted display, open the
Display Mode menu, set SHIFT to NORMAL
and then press the [MENU/ESC] key.
1. OPERATION
8
1.13 Zoom
The zoom feature allows you to double the
size of a selected area.
If zoom is activated when nav data is
displayed, the nav data is automatically
erased.
1. Use the cursor pad to place the cursor
where you want to zoom.
2. Press the [MODE] key to show the display
mode menu.
DISPLAY MODE
[MENU/ESC] : Exit
SHIFT (MANUAL)*
NORMAL
ZOOM
NAV DISP OFF ON
Display mode menu
3. Press ▼ to choose ZOOM.
4. Press the [MENU/ESC] key to close the
menu. “ZOOM” appears at the top left
corner when the zoom feature is turned
on.
6.0
nm
2.0
ZOOM
Zoom
Window
RNG 4.43nm
BRG 231.3°
TTG: 02H21M
+
Cursor
EBL
- - -
.-
°
VRM - - - -nm
ZOOM
Zoom display
To cancel the zoom display, open the Display
Mode menu, choose NORMAL and then
press the [MENU/ESC] key. To choose new
zoom location, restore to the NORMAL mode
and then repeat the zoom procedure.
1.14 User Menu Overview
The User menu, consisting of three pages of
menus, contains 12 items which the user may
set according to conditions or preference.
1. Press the [MENU] key to open the User
menu.
P
(1/3)
INT REJECTION LOW
ECHO STRETCH : LOW
FTC : OFF
NOISE REJECTION: LOW
[MENU/ESC] : Exit.
*
* = "P" shows current function of PROG key
User menu, page 1
2. Use ▲ or ▼ to scroll the menu to display
desired item in reverse video.
Page 2
(3/3)
Page 3
WATCHMAN TIME OFF
HUE : DAY
PANEL DIMMER : OFF
HDG LINE OFF
[MENU/ESC] : Exit.
(2/3)
ECHO TRAIL OFF
TRAIL BRILLIANCE : LOW
TRIPLOG RESET?
SYSTEM MENU...
[MENU/ESC] : Exit.
User menu, pages 2 and 3
3. Press ► to show the options window for
the item selected. For example, the
illustration below shows the interference
rejector options window.
OFF
LOW
MEDIUM
HIGH
Interference rejector options
4. Press ▲ or ▼ to choose option desired.
5. Press ◄ to continue menu operation, or
press the [MENU/ESC] key to register
your selection and close the User menu.
1. OPERATION
9
User menu description
Item Description
INT
REJECTION
Rejects radar interference.
ECHO
STRETCH
Stretches echoes in range
direction or range and bearing
direction.
FTC Suppresses long-range rain
clutter.
NOISE
REJECTION
Rejects noise.
WATCHMAN
TIME
Periodically checks for targets
in guard zone.
HUE Chooses echo and background
tones.
PANEL
DIMMER
Adjusts panel backlighting.
HDG LINE
OFF
Temporarily turns the heading
line off.
ECHO TRAIL Shows echo movement in
afterglow.
TRAIL
BRILLIANCE
Adjusts echo trail brilliance.
TRIPLOG
RESET?
Resets distance run.
SYSTEM
MENU
Opens the system menu. For
description see paragraph
1.30.
1.15 Heading Line
The heading line indicates the ship’s heading
and it is the solid line which appears at zero
degrees on the bearing scale.
To temporarily erase the heading line to look
at targets existing dead ahead of own ship,
do the following:
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose HDG LINE OFF
from page 2.
3. Press ► to turn the heading line off. The
line stays off while ► is pressed.
4. Press the [MENU/ESC] key to close the
menu.
1.16 Interference Rejector
Mutual radar interference may occur in the
vicinity of another shipborne radar operating
in the same frequency band (9 GHz). It is
seen on the screen as a number of bright
spikes either in irregular patterns or in the
form of usually curved spoke-like dotted lines
extending from the center to the edge of the
picture. This type of interference can be
reduced by activating the interference rejector
circuit. “IR” and the rejection level indicator
“L,” “M” or “H” appear at the top right corner
when the interference rejector circuit is on.
Appearance of interference
Turn off the interference rejector when no
interference exists, to avoid missing small
targets.
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose INT REJECTION
from page 1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF, LOW,
MEDIUM or HIGH as appropriate.
5. Press the [MENU/ESC] key to finish.
1. OPERATION
10
1.17 Noise Rejector
The noise rejector suppresses white noise,
which appears on the screen as many dots
scattered randomly over the display.
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose NOISE
REJECTION from page 1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF, LOW or
HIGH as appropriate.
5. Press the [MENU/ESC] key to close the
menu.
1.18 Echo Trail, Trail Brilliance
Echo trails are the afterglow of target echoes
that represent their movements relative to
own ship. They are useful for monitoring
target movement.
Trails are painted for the time period chosen.
When the time period has elapsed, trails are
erased and restarted. Trails are also erased
and restarted whenever the range is changed
or zoom or shift is activated.
30S TRAIL
Trail time
(No time shown
in case of
continuous trails)
Echo trail
Echo trails
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose ECHO TRAIL
from page 3.
3. Press ► to open the options window.
OFF
30sec
1min
3min
6min
CONTIN.
Echo trail options
4. Press ▲ or ▼ to choose appropriate time,
or OFF to cancel echo trails. “CONTIN.”
paints trails continuously.
5. Press ◄ to close the options window.
6. Press ▼ to choose TRAIL BRILLIANCE.
7. Press ► to open the options window.
8. Press ▲ or ▼ to choose LOW or HIGH
as appropriate.
9. Press the [MENU/ESC] key to close the
menu.
“TRAIL” and trail time (no time shown in case
of “CONTIN.”) are shown at the upper
right-hand corner on the screen.
1.19 Echo Stretch
On long ranges target echoes tend to shrink,
making them difficult to see. To enhance
target video on long ranges, use the echo
stretch feature.
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose ECHO
STRETCH from page 1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF, LOW or
HIGH as appropriate. LOW stretches
echoes in the bearing direction; HIGH
stretches echoes in the range and bearing
directions. “ES L” or “ES H” appears at
the top right-hand corner when echo
stretch is turned on.
5. Press the [MENU/ESC] key to close the
menu.
Echo
ES L ES H
Brg dir.
Brg dir.
Rng
dir.
Echo Stretch Echo Stretch Echo Stretch
OFF LOW HIGH
How echo stretch works
1. OPERATION
11
1.20 Guard Alarm
The guard alarm allows the operator to set
the desired range and bearing for a guard
zone. When ships, islands, landmasses, etc.
violate the guard zone, audio and visual
alarms are released to call your attention.
The alarms will be released for targets
entering or exiting the zone depending on the
presence or absence of targets in the zone
when the alarm is set.
*
The alarm should not be relied upon as the
sole means for detecting possible collision
situations.
*
A/C SEA, A/C RAIN, FTC and GAIN controls
should be properly adjusted to be sure the
weak echoes will not be missed by the alarm.
NOTICE
Setting a guard zone
1. Operate the cursor pad to place the
cursor at the top left corner for the zone
and then press the [ALARM] key.
2. Operate the cursor pad to place the
cursor at the bottom right corner for the
zone and then press the [ALARM] key.
Guard
zone
to set
G(---)
1)Place cursor at
top left corner for
zone and press
[ALARM].
Place cursor
here.
Mentally create
the guard zone
to set.
2)Place cursor at
bottom right corner
for zone and press
[ALARM].
Guard zone
completed.
Guard
zone
Place cursor
here.
G(---)
G(---)
How to set a guard zone
How guard zone type is determined
After the guard zone has been set, the radar
checks for targets inside the guard zone,
which takes about 8 to 12 seconds. When the
check is completed, “G(IN)” or “G(OUT)”
replaces G(---) at the top right corner.
G(IN): When no target exists in the zone,
"G(IN)" appears. The audio alarm sounds
against targets which enter the guard zone.
G(OUT): If there are targets in the guard
zone, "G(OUT)" appears. The audio alarm
sounds against all targets which exit from the
guard zone.
(a) Inward target alarm (b) Outward target alarm
Inward and outward alarms
Note: The guard zone disappears when it is
not within the range in use. When this occurs
"UP RNG" replaces G(IN) or G(OUT).
Change the range to redisplay the guard
zone.
Silencing the audio alarm
When a target violates the guard zone, the
target flashes and the audio alarm sounds.
You can silence the audio alarm with the
[ALARM] key. The target continues flashing
until it no longer violates the guard zone or
the guard zone is canceled.
Canceling the guard zone and guard
alarm
Press and hold down the [ALARM] key until
the guard zone is erased.
1. OPERATION
12
1.21 Watchman
The radar "wakes up" at specified time
intervals (5, 10, or 20 minutes) and operates
for 10 scans, the start of which is announced
by releasing the audio alarm. If change is
found in the guard zone from the previous 10
scans, the audio alarm sounds and the radar
resumes normal operation, canceling the
watchman mode. If no change is found, the
radar goes into stand-by, for the specified
time interval. This feature is useful for
periodic watch of the guard zone.
ST-BY
5,10
or
20 min
Tx
1 min
Tx
1 min
Watchman
starts
5,10
or
20 min
ST-BY
*
*
* Beeps emitted just before radar transmits.
How watchman works
1. Set a 360° guard zone referring to
paragraph 1.20.
2. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose WATCHMAN
TIME from page 2.
3. Press ► to open the options window.
OFF
5 min
10 min
20 min
Watchman time options
4. Press ▲ or ▼ to choose appropriate time
out, that is, the amount of time the radar
waits in standby, among 5, 10 and 20
minutes.
5. Press the [MENU/ESC] key to close the
menu.
1.22 Suppressing Long-range
Rain Clutter
In adverse weather, clouds, rain or snow
produce spray-like spurious echoes which
impair target detection over a long distance.
These echoes can be suppressed by turning
on the FTC (Fast Time Constant). FTC works
by splitting up these unwanted echoes into a
speckled pattern, making recognition of solid
targets easier.
1. Press the [MENU/ESC] key.
2. Press ▲ or ▼ to choose FTC from page
1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF or ON as
appropriate.
5. Press the [MENU/ESC] key to close the
menu.
“FTC” appears at the top right corner when
the FTC is active.
1.23 Panel Backlighting
You may adjust panel backlighting as follows:
1. Press the [MENU/ESC] key to open the
User menu.
2. Choose PANEL DIMMER from page 2.
3. Press ► to open the options window.
4. Choose OFF, LOW, MEDIUM or HIGH as
appropriate.
5. Press the [MENU/ESC] key to close the
menu.
1. OPERATION
13
1.24 Hue
The default hue setting (DAY) displays
echoes in tones of gray on a white
background, which is most suitable for
daytime viewing. For nighttime viewing you
may reverse this arrangement.
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose HUE from page
2.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose DAY or NIGHT
as appropriate.
5. Press the [MENU/ESC] key to close the
menu.
1.25 Resetting Distance Run
You may reset distance run to zero as below.
You need a navigator or speed log to display
distance run.
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose “TRIPLOG
RESET?” from page 3.
3. Press ► to open the options window.
4. Press ▲ to choose YES to reset distance
run to zero.
5. Press the [MENU/ESC] key to close the
menu.
1.26 PROG Key
The [PROG] key acts as a shortcut key. You
may use any User menu item except
“TRIPLOG RESET?” and “SYSTEM MENU.”
Using the PROG key
1. Press the [PROG] key. The options
window corresponding to the item
programmed appears. In the example at
the top of the next page the echo stretch
options window is shown.
OFF
LOW
HIGH
ECHO STRETCH
Echo stretch options window
2. Press ▲ or ▼ to choose appropriate
option.
3. Press the [MENU/ESC] key to close the
options window.
Programming the PROG key
1. Press the [MENU/ESC] key to open the
User menu. “P” marks the current function
of the [PROG] key.
P
(1/3)
INT REJECTION LOW
ECHO STRETCH : LOW
FTC : OFF
NOISE REJECTION: LOW
[MENU/ESC] : Exit.
*
User menu, page 1
2. Press ▲ or ▼ to choose the item you
wish to use.
3. Press and hold down the [PROG] key
(about three seconds) until you hear a
beep and the “P” moves to the item
selected.
4. Press the [MENU/ESC] key to close the
menu.
1.27 Outputting Target Position
to a Plotter
If the radar is interfaced with a plotter, you
can output a radar target’s latitude and
longitude position to the plotter, and show
that position on the plotter’s screen, with the
target mark (X). This function requires
position and heading data.
1. Use the cursor pad to place the cursor on
a target.
2. Press the [TLL] key to output the target’s
L/L position.
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